Table 1.

Modelling parameters for coarse-grain silk fibre.

parameter	value	units
ultimate stress, σult	1000	MPa
ultimate strain, ɛult	2.0	m m−1
hyperelastic parameter, α	3.0	n.a.
equilibrium distance, l0	200	nm
fibril diameter, r0	200	nm
globule diameters, rg	rg = 1.25r0, 1.50r0, 2.00r0	nm
fibril contact stiffness parameter, ɛ0	300	kcal mol−1
globule contact stiffness parameter, ɛg	ɛg = ɛ0(rg/r0)2	kcal mol−1
contact distance parameters, σg	σg = (2/3)1/3r0	nm